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Experimenting with Magnetic Components
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Experimenting with Magnetic Components
Blog Experimenting with Magnetic Components - SMD transformers experiment gizmo part 1: Build
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  • Author Author: Jan Cumps
  • Date Created: 10 Oct 2021 6:49 PM Date Created
  • Views 1961 views
  • Likes 1 like
  • Comments 3 comments
  • experimenting_with_magnetic_components
  • magnetic_components
  • project14
  • bourns
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Recommended

Experimenting with Magnetic Components - SMD transformers experiment gizmo part 1: Build

Jan Cumps
Jan Cumps
10 Oct 2021

I'm reviewing a set of inductors for the Experimenting with Magnetic Components design challenge.

In this post: a non-destructive testbed for SMD transformers.

The inductor is #13 of the kit: HCTSM80304BAL-E1 Pulse Transformer, 3:4, 300µHHCTSM80304BAL-E1 Pulse Transformer, 3:4, 300µH

image

 

Experiment with SMD components

 

I'm going to use two SMD pulse transformers in a PWM translate and a DC conversion scenario.

I want to have access to all pins to show what's going on.

Here's how I made a test jig, using things I have lying around here.

 

image

 

I'm going to use a repurposed proto board. The transformer's pitch doesn't match the pcb matrix, but it isn't that far off.

I cut of a pair of 3-pin headers to mount the inductor into.

image

I'm using the wire-wrap style. They have very long pins and can be used as male or female access pins.

 

image

The transformer's pitch is a little wider than the distance between the header pins, but all 3 pins at each side make contact.

I first soldered the headers onto the proto board. Then placed the transfo in between and made the solder connections between transfo and header pins.

I taped Kapton foil (price for participating in project14price for participating in project14) on the board to avoid any bogus contacts between the transformer's SMD pads and the PCB pads.

 

image

 

image

The end result is neat, easy to use. And non-destructive: all components can be recovered when done.

 

image

 

 

Related posts
1. Boost Converter part 1: Inductor and Calculations
2. Boost Converter part 2: Build
3. Boost Converter part 3: Measure the Inductor in action
4. LCR meter experiments
5. SMD transformers experiment gizmo part 1: Build
6. SMD transformers experiment gizmo part 2: Measure
7. Common Mode Choke
8. Make your own Inductor
9. Calculate your own Inductor
10. Boost Converter part 4: Efficiency
11. DIY Inductance Meter
Planar PCB Transformer: GaN Point of Load converter 48V to 1V 50A
Measure Unknown Inductor Value with Function Generator and Oscilloscope
Experimenting with Magnetic Components: About the Competition
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  • genebren
    genebren over 1 year ago

    Very nice setup for testing the transformer, and again with very clean protoboard techniques.

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  • Jan Cumps
    Jan Cumps over 1 year ago

    preparing for measurements.

     

    image

    image

    image

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  • Jan Cumps
    Jan Cumps over 1 year ago

    A few close-ups:

    image

    image

    image

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